20828136

素因数分解:

$2^3\times 3^1\times 7^2\times {\mathrm{89}}^1\times {\mathrm{199}}^1$

素因数の和:311

約数の個数: 96

約数和(自身を含む): 61560000

約数和(自身を除く): 40731864

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 49, 56, 84, 89, 98, 147, 168, 178, 196, 199, 267, 294, 356, 392, 398, 534, 588, 597, 623, 712, 796, 1068, 1176, 1194, 1246, 1393, 1592, 1869, 2136, 2388, 2492, 2786, 3738, 4179, 4361, 4776, 4984, 5572, 7476, 8358, 8722, 9751, 11144, 13083, 14952, 16716, 17444, 17711, 19502, 26166, 29253, 33432, 34888, 35422, 39004, 52332, 53133, 58506, 70844, 78008, 104664, 106266, 117012, 123977, 141688, 212532, 234024, 247954, 371931, 425064, 495908, 743862, 867839, 991816, 1487724, 1735678, 2603517, 2975448, 3471356, 5207034, 6942712, 10414068, 20828136]

約数ペア:

[(1, 20828136), (2, 10414068), (3, 6942712), (4, 5207034), (6, 3471356), (7, 2975448), (8, 2603517), (12, 1735678), (14, 1487724), (21, 991816), (24, 867839), (28, 743862), (42, 495908), (49, 425064), (56, 371931), (84, 247954), (89, 234024), (98, 212532), (147, 141688), (168, 123977), (178, 117012), (196, 106266), (199, 104664), (267, 78008), (294, 70844), (356, 58506), (392, 53133), (398, 52332), (534, 39004), (588, 35422), (597, 34888), (623, 33432), (712, 29253), (796, 26166), (1068, 19502), (1176, 17711), (1194, 17444), (1246, 16716), (1393, 14952), (1592, 13083), (1869, 11144), (2136, 9751), (2388, 8722), (2492, 8358), (2786, 7476), (3738, 5572), (4179, 4984), (4361, 4776)]